CO pressure. The chemoselectivity toward double CO insertion can be increased by using 40 bar of CO pressure, in this way up to 60% selectivitytoward 2-ketocarboxamide was achieved. In the case of 5-iodouracil the corresponding 5-glyoxylamido-uracil derivatives were exclusively formed at 40 bar CO pressure. The only exception is the less basic aniline nucleophile which provided the corresponding carboxamide